RHODUNA® PT ONE is unique in our product portfolio in many ways. Like its big brother RHODUNA® PT, the ONE variant is an economical alternative for pure rhodium. However, with the difference...
PT ONE - Unique
RHODUNA® PT ONE is unique in our product portfolio in many ways. Like its big brother RHODUNA® PT, the ONE variant is an economical alternative for pure rhodium. However, with the difference that RHODUNA® PT ONE is designed for small scale and the metal content is reduced to one gram per liter. This allows extremely economical rhodium plating starting with the first liter of electrolyte - and with almost constant layer properties. Additional benefits include easy handling thanks to a simple work area and the reduction of the necessary components to an absolute minimum - apart from the initial concentrate, only water is required for electrolyte makeup.
A RHODUNA® PT ONE layer consists of 20% rhodium and 80% platinum. Nevertheless, the high-quality alloy cannot be distinguished from that of a pure rhodium electrolyte, even with a trained eye. Due to the high social value of platinum, your product simultaneously gains psychological value and its price acceptance increases significantly - conversely, for you as a producer, a coating with RHODUNA® PT ONE is far more attractive in terms of price than one with a pure rhodium electrolyte.
Electrolytes Characteristics
Electrolyte type | Strongly acidic |
Metal content | 0.3 g/l Rh, 0.7 g/l Pt |
pH value | < 1 |
Operating temperature | 45 (40 - 50) °C |
Current density range | 3.0 (2.0 - 5.0) A/dm² /// In case the layer is not white enough, just increase the current density (voltage) |
Plating speed | approx. 0.05 μm/min approx. 3.5 A/dm² |
Anode material | Pt/Ti MMO 187SO |
Coating Characteristics
Coating | Rhodium-platinum |
Alloy composition | 20 % Rh, 80 % Pt |
Colour of deposit | White |
Brightness | Bright |
Hardness of deposit | approx. 600 HV |
Density of the coating | approx. 18.7 g/cm³ |
Advantages
- White and bright rhodium-platinum coatings
- Uniform layer thickness
- Crack-free up to 0,3 μm
- Wide current density range
- Abrasion-resistant
- Easy handling
- Less expensive than pure rhodium layers
- Good throwing power and minor porosity
- Good covering speed
- Suitable for rack plating
Applications
-Jewelry
- Watches
- Writing implements
-Spectacle frames
- Bathroom fittings